<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			* {
				margin: 0;
				padding: 0;
			}

			#d1 {
				height: 300px;
				background-color: blue;
			}

			.c1 {
				margin: 5px auto;
				background-color: darkgray;
				border: 1px dashed #00AD5F;

				width: 600px;
				height: 100px;
			}
			#all{
				border: 5px dashed greenyellow;
				position: relative;
			}
			#d3 {
				position: absolute;
				top: 30px;
				left: 20px;
				background-color: red;
				/* float: right; */
			}
		</style>
	</head>
	<body>
		<div id="d1">111</div>
		<div id="all">
			<div class="c1">
				2222
			</div>
			<div id="d3" class="c1">
				333
			</div>
			<div class="c1">
				555
			</div>
		</div>
	</body>
</html>
